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239283

Sigma-Aldrich

Potassium hydrogenfluoride

99%

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Synonym(s):
Potassium bifluoride, Potassium hydrogen difluoride
Linear Formula:
KHF2
CAS Number:
Molecular Weight:
78.10
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.55

Quality Level

assay

99%

form

lumps
powder or crystals

mp

239 °C (lit.)

density

2.37 g/mL at 25 °C (lit.)

SMILES string

[F-].[K+].F[H]

InChI

1S/2FH.K/h2*1H;/q;;+1/p-1

InChI key

VBKNTGMWIPUCRF-UHFFFAOYSA-M

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1 of 4

This Item
PX1467AX123560349
Potassium hydrogenfluoride 99%

239283

Potassium hydrogenfluoride

Potassium Fluoride Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

PX1467

Potassium Fluoride

Ammonium Bifluoride Practical

AX1235

Ammonium Bifluoride

assay

99%

assay

≥99.0% (precipitation titration)

assay

≥96.0%

assay

≥99.0% (T)

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

mp

239 °C (lit.)

mp

846 °C

mp

126 °C

mp

-

density

2.37 g/mL at 25 °C (lit.)

density

-

density

-

density

-

pictograms

CorrosionSkull and crossbones

signalword

Danger

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B

Storage Class

6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Customers Also Viewed

Potassium Hydrogen Fluoride.
Molander GA, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2012)
Gary A Molander et al.
The Journal of organic chemistry, 73(17), 6841-6844 (2008-08-07)
A number of alkynyl pinacolboronates bearing various functional groups were synthesized according to literature methods. These were then stereoselectively reduced to the cis-alkenyl pinacolboronates via hydroboration with dicyclohexylborane followed by chemoselective protodeboronation using acetic acid. Treatment with potassium hydrogen fluoride
Reaction of 2-deoxy-6-O-[2,3-dideoxy-4,6-O-isopropylidene-2,3- (N-tosylepimino)-alpha-D-mannopyranosyl]-4,5-O-isopropylidene-1,3-di-N- tosylstreptamine with potassium hydrogenfluoride.
Y Kobayashi et al.
Carbohydrate research, 229(2), 363-368 (1992-05-22)
Zhibo Liu et al.
Nature protocols, 10(9), 1423-1432 (2015-08-28)
Herein we present a general protocol for the functionalization of biomolecules with an organotrifluoroborate moiety so that they can be radiolabeled with aqueous (18)F fluoride ((18)F(-)) and used for positron emission tomography (PET) imaging. Among the β(+)-emitting radionuclides, fluorine-18 ((18)F)
Matthew J Hesse et al.
Angewandte Chemie (International ed. in English), 51(50), 12444-12448 (2012-11-07)
E-allylic boronic esters undergo a highly diastereoselective protodeboronation with TBAF⋅3 H(2)O to give Z-trisubstituted alkenes. The selectivity can be switched to give predominantly the E-alkene instead by using KHF(2)/TsOH (see scheme). The utility of the methodology has been illustrated in a

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